Evans
Capacitor manufactures high
energy density capacitors
for demanding defense and
aerospace applications.
Typical applications replace
standard military
capacitors, or augment
batteries and power supplies
where size, weight,
reliability and quality are
important factors of
component selection. Evans
maintains the highest levels
of quality, and is ISO 9001
and AS9001 registered. Quality & Compliance
ExportRoHS
compliance

Hybrid
Capacitors provide high
current pulse capability for
the advanced phased array
radar systems on the E 2D

Evans is
ITAR registered, supplying mission
critical components to every major
defense and aerospace company in the
USA. Hermetically sealed Evans Hybrid
Capacitors have numerous patented
features that provide demonstrated
advantages over standard capacitor
technologies. Hybrid capacitors are
EAR-99 for export.

Evans'
production facility, located in East
Providence RI, and Sanford ME, USA
follow the most stringent guidelines
for quality and performance. All Evans
capacitor products undergo extensive
testing and evaluation. Evans staff
consists of engineers, scientists and
technicians with many years of
experience in high energy density
capacitors, always available to work
with specific applications or new uses
for these devices.

Evans
welcomes the opportunity to work with
engineers and product designers to see
how Evans' advanced capacitors might
offer the perfect fit (and competitive
advantage) we all strive for.

Evans
Hybrid and Capattery
Capacitors are qualified
in many new avionics
systems like ARROWHEAD
MTADS/PNVS for Apache.

Hybrid
capacitor technology was licensed to
Wilson Greatbatch, producers of the
world's leading capacitors for
implantable defibrillators.

Hybrid
capacitors have extremely high power
density, unbeatable for pulse radar
and laser applications. With high
energy density, Hybrid capacitors are
also well suited for bridge power or
bus power interruption buffers.

The
Capattery has high capacitance at 5.5V
and 11V with full +85°C life
performance providing the only
supercapacitor capability for memory
back-up in defense electronics.

HyCap is
the proven Hybrid Techology packaged
in the standard wet slug package for
DSCC 93026 and DSCC10004. HyCap
delivers better perfomance at all
temperature operating conditions, up
to 200C, and higher extended cap
ratings.

Shock
hardened models of both Hybrid and
Capattery are available for high
impact shock environments like missile
fusing and penetrator weapon
applications.

HYBRID
CAPACITORS

Hybrid
capacitors provide very high power and
energy from devices much smaller and
lighter than electrically equivalent
tantalum wet, tantalum chip, or
aluminum electrolytic capacitors.

Hybrid
Capacitors save
weight, volume and
cost when compared to
other military
tantalum wet or
aluminum electrolytic
capacitors.

The
Hybrid capacitor combines a high
voltage electrolytic type anode
bearing a Ta2O5 dielectric with a low
voltage, high energy density
electrochemical supercapacitor RuO2
cathode. Unlike other supercapacitors,
use of the dielectric permits higher
voltage operation of single cells.
Thus, the Hybrid capacitor can operate
at higher voltages without the need
for series connected cells.

The
resistance (ESR) of single cell Hybrid
capacitors is much lower compared to
other supercapacitors of similar
voltage rating. This leads to a very
low time constant of 1ms, or less,
making Hybrid capacitors well suited
for high-rate applications. Hybrid
capacitors are available with voltages
up to 125V in a variety of standard
configurations and capacitance
ratings. Hybrid capacitors are also
available in custom configurations and
ratings for specific customer
requirements.

Hybrid
Capacitors are
available in a number of standard
configurations andratings from 10V to
125V

CAPATTERY SUPERCAPACITORS

The
advantage of the Capattery in defense
electronics is its resistance to
environmental conditions that destroy
other supercapacitors. With its welded
tantalum case and the unique
Permselective™ valve, the Capattery
can survive military environmental
conditions for a lifetime of use.
Capatterys are available in standard
configurations under DSCC Dwg. No.
92001. Custom units and packaging are
also available.